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本篇内容介绍了“percona 5.7 怎么添加 tokudb”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让丸趣 TV 小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
确保 libjemalloc 高于 3.3.0
[root@fund-mgmt-db-mog-2 ~]# yum list |grep jemalloc
jemalloc.x86_64 3.6.0-1.el7 @percona-release-x86_64
jemalloc-debuginfo.x86_64 3.3.1-1.el7 percona-release-x86_64
jemalloc-devel.x86_64 3.6.0-1.el7 percona-release-x86_64
一定要大页支持，才能启动 tokudb
echo never /sys/kernel/mm/transparent_hugepage/enabled
echo never /sys/kernel/mm/transparent_hugepage/defrag
安装 tokudb 包
yum -y UNINSTALL Percona-Server-tokudb-57.x86_64
让 tokudb 引擎生效
ps_tokudb_admin –enable -uroot -p###### -S /home/mysql/my3313/run/mysql.sock -P 3313
mysql show engines;
+——————–+———+—————————————————————————-+————–+——+————+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+——————–+———+—————————————————————————-+————–+——+————+
| InnoDB | DEFAULT | Percona-XtraDB, Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| CSV | YES | CSV storage engine | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| BLACKHOLE | NO | /dev/null storage engine (anything you write to it disappears) | NULL | NULL | NULL |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| TokuDB | YES | Percona TokuDB Storage Engine with Fractal Tree(tm) Technology | YES | YES | YES |
| PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO |
| ARCHIVE | YES | Archive storage engine | NO | NO | NO |
| MyISAM | YES | MyISAM storage engine | NO | NO | NO |
| FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL |
+——————–+———+—————————————————————————-+————–+——+————+
10 rows in set (0.00 sec)
— 卸载 tokudb
UNINSTALL PLUGIN tokudb ;
UNINSTALL PLUGIN tokudb_file_map ;
UNINSTALL PLUGIN tokudb_fractal_tree_info ;
UNINSTALL PLUGIN tokudb_fractal_tree_block_map ;
UNINSTALL PLUGIN tokudb_trx ;
UNINSTALL PLUGIN tokudb_locks ;
UNINSTALL PLUGIN tokudb_lock_waits;
UNINSTALL PLUGIN tokudb_background_job_status;
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